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Boston Lager Clone (Original BBC Recipe)

163 calories 14.4 g 12 oz
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Beer Stats
Method: All Grain
Style: International Amber Lager
Boil Time: 60 min
Batch Size: 5.5 gallons (fermentor volume)
Pre Boil Size: 7 gallons
Post Boil Size: 6 gallons
Pre Boil Gravity: 1.043 (recipe based estimate)
Post Boil Gravity: 1.050 (recipe based estimate)
Efficiency: 75% (brew house)
Source: impatient via Homebrew Talk
Calories: 163 calories (Per 12oz)
Carbs: 14.4 g (Per 12oz)
Created: Tuesday May 7th 2019
1.050
1.009
5.4%
29.9
6.5
5.4
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
9.50 lb American - Pale 2-Row9.5 lb Pale 2-Row 37 1.8 95%
0.50 lb American - Caramel / Crystal 60L0.5 lb Caramel / Crystal 60L 34 60 5%
10 lbs / $ 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
1 oz Tettnanger1 oz Tettnanger Hops Pellet 4.5 Boil 60 min 16.55 25%
1 oz Hallertau Mittelfruh1 oz Hallertau Mittelfruh Hops Pellet 3.75 Boil 20 min 8.35 25%
1 oz Hallertau Mittelfruh1 oz Hallertau Mittelfruh Hops Pellet 3.75 Boil 10 min 5 25%
1 oz Hallertau Mittelfruh1 oz Hallertau Mittelfruh Hops Pellet 3.75 Dry Hop 14 days 25%
4 oz / $ 0.00
 
Other Ingredients
Amount Name Cost Type Use Time
1 each Whirlfloc Tablet Fining Boil 5 min.
6 tsp Yeast Nutrient Other Boil 10 min.
4.70 ml Lactic acid Water Agt Mash 1 hr.
1.82 ml Lactic acid Water Agt Sparge 1 hr.
1 tsp Gelatin Finings Other Kegging 0 min.
 
Yeast
Fermentis - Saflager - German Lager Yeast W-34/70
Amount:
1 Each
Cost:
Attenuation (avg):
83%
Flocculation:
High
Optimum Temp:
48 - 72 °F
Starter:
Yes
Fermentation Temp:
68 °F
Pitch Rate:
0.35 (M cells / ml / ° P) 90 B cells required
$ 0.00 Yeast Pitch Rate and Starter Calculator
Priming
Method: co2       CO2 Level: 2.25 Volumes
 
Target Water Profile
Pilsen (Light Lager)
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
7 3 2 5 5 25
Mash Chemistry and Brewing Water Calculator
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
Heat strike water to 110 degrees (target 105 degrees). Hold mash at 105 for 30 minutes. Strike 110 °F 105 °F 30 min
Elevate mash to 122 and rest for 30 minutes. Temperature 105 °F 122 °F 30 min
Elevate mash to 155 and rest for 30 minutes (155 is very important for the body of the beer). Temperature 122 °F 155 °F 30 min
Elevate mash to 168 (do not exceed 170), settle grain bed, and clear runnings. Temperature 155 °F 168 °F --
Heat sparge water to 168 degrees and sparge at 1 quart per minute. Fly Sparge 168 °F 168 °F --
Starting Mash Thickness: 1.5 qt/lb
Starting Grain Temp: 65 °F
Quick Water Requirements
Water Gallons  Quarts
Strike water volume at mash thickness of 1.5 qt/lb 3.75 15  
Mash volume with grains 4.55 18.2  
Grain absorption losses -1.25 -5  
Remaining sparge water volume (equipment estimates 4.86 g | 19.5 qt) 4.75 19  
Mash Lauter Tun losses -0.25 -1  
Pre boil volume (equipment estimates 7.11 g | 28.5 qt) 7 28  
Boil off losses -1.5 -6  
Hops absorption losses (first wort, boil, aroma) -0.11 -0.5  
Post boil Volume (equipment estimates 5.5 g | 22 qt) 6 24  
WARNING: Exceeded batch size - reduce boil size    
Going into fermentor (equipment estimates 6 g | 24 qt) 5.5 22  
Total: 8.5 34
Equipment Profile Used: System Default
 
Notes

This recipe as designed requires a decoction mash (see below). I chose to do a step-mash instead without water additions at each step.

Recipe Type: All Grain
Yeast: Wyeast 2035
Yeast Starter: yes
Batch Size (Gallons): 6
Original Gravity: 1.048
Final Gravity: 1.009
Boiling Time (Minutes): 60
IBU: 26
Color: 7.86
Primary Fermentation (# of Days & Temp): 10/50
Secondary Fermentation (# of Days & Temp): 5/50
Additional Fermentation: 42/30
Tasting Notes: Enjoy
Boston Lager Clone (Decoction/Krausening AG recipe)

Ingredients:

9.5 lbs American 2-Row
0.5 lbs Crystal 60
1oz Tettnanger 60 minute addition
1oz Hallertau 20 minute addition
1oz Hallertau 10 minute addition
1oz Hallertau in Secondary
Wyeast 2035

OG: 1.048
TG: 1.009
C: 7.85
IBU: 26
ABV: 5.0

Heat 12.5 quarts of strike water to target 105 degrees.
Hold mash at 105 for 30 minutes.

Remove 5 pints of mash, boil and return to mash tun. Stir and verify temp of approx 122. After reaching 122 rest for 30 minutes.

Remove 11 pints of mash, boil and return to mash tun. Stir and verify temp of 155. Here 155 is very important for the body of the beer. After reaching 155 rest for 30 minutes.

Heat 15 quarts of water to 168.

Remove 7 pints of mash, boil and return to mash tun. Stir and verify temp of 168. Do not exceed 170 here.

Settle grain bed and clear runnings. Sparge with 15 quarts(above) at 1 quart minute.

Boil wort adding hops at intervals above and chill wort down to 50 degrees.

Remove 1/6 of final wort volume and refrigerate for krausening below.

Pitch the yeast and ferment for 10 days at 50 degrees. Save 1/6 of the yeast starter and refrigerate.

Move to secondary and dry hop. Check gravity and record for use below. Hold at 50 degrees.

Remove saved yeast and wort, mix and warm to 50 degrees. Take the secondary gravity above and add 0.015. Example 1.010 + 0.015 = 1.025. Record the gravity of this mixture each day until it reaches the calculated value. Once the value is reached add the mixture to the secondary and bottle immediately. Do not add priming sugar, this technique will create your carbonation.

Once bottled, store at 50 degrees for 2 weeks and then drop the temp by 1 degree each day until 30 degrees is met. Lager at 30 degrees for 3 weeks.

Enjoy.

Add 1 tsp Irish Moss @ 10 mins or 1 Wirlfloc tablet @ 15 mins.
Ferment in primary for 10 days.
Ferment in secondary for 5 days (if kegging, move into keg at this time for 5 days).

Cold crash for 2 days and add gelatin finings on Day 2. Dissolve 1 tsp finings in 2 cups (16 oz) of hot water. Let cool to room temperature and add to keg.

Keg and force carbonate at 30 psi for 20 minutes using liquid side dip tube. Rock the keg during this time to accelerate the absorption of CO2. Stop every 4 minutes to listen to the keg. The bubbling sound should stop after only a few seconds meaning the CO2 is dissolving into the beer. Lower the pressure to 20 psi. Wait 1-2 hours to let it settle, then adjust the CO2 to serving pressure before testing the beer.

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  • Last Updated: 2020-02-11 14:44 UTC